chore(publish): add --dry-run flag (#21895)

cli/args/flags.rs

@@ -328,6 +328,7 @@ pub struct VendorFlags {
 #[derive(Clone, Debug, Eq, PartialEq)]
 pub struct PublishFlags {
   pub token: Option<String>,
+  pub dry_run: bool,
 }
 
 #[derive(Clone, Debug, Eq, PartialEq)]
@@ -2379,6 +2380,12 @@ fn publish_subcommand() -> Command {
           .long("token")
           .help("The API token to use when publishing. If unset, interactive authentication is be used")
       )
+      .arg(
+        Arg::new("dry-run")
+          .long("dry-run")
+          .help("Prepare the package for publishing performing all checks and validations without uploading")
+          .action(ArgAction::SetTrue),
+      )
     })
 }
 
@@ -3812,6 +3819,7 @@ fn vendor_parse(flags: &mut Flags, matches: &mut ArgMatches) {
 fn publish_parse(flags: &mut Flags, matches: &mut ArgMatches) {
   flags.subcommand = DenoSubcommand::Publish(PublishFlags {
     token: matches.remove_one("token"),
+    dry_run: matches.get_flag("dry-run"),
   });
 }
 

cli/tests/integration/publish_tests.rs

@@ -89,6 +89,16 @@ itest!(workspace_individual {
   temp_cwd: true,
 });
 
+itest!(dry_run {
+  args: "publish --token 'sadfasdf' --dry-run",
+  cwd: Some("publish/successful"),
+  copy_temp_dir: Some("publish/successful"),
+  output: "publish/dry_run.out",
+  envs: env_vars_for_registry(),
+  http_server: true,
+  temp_cwd: true,
+});
+
 #[test]
 fn ignores_directories() {
   let context = publish_context_builder().build();

cli/tests/testdata/publish/dry_run.out

@@ -0,0 +1,4 @@
+Checking fast check type graph for errors...
+Ensuring type checks...
+Check [WILDCARD]
+Warning Aborting due to --dry-run

cli/tools/registry/mod.rs

@@ -836,6 +836,14 @@ pub async fn publish(
     bail!("No packages to publish");
   }
 
+  if publish_flags.dry_run {
+    log::warn!(
+      "{} Aborting due to --dry-run",
+      crate::colors::yellow("Warning")
+    );
+    return Ok(());
+  }
+
   perform_publish(
     cli_factory.http_client(),
     publish_order_graph,